u/Beginning_Trainer381

Say my opponent has something like [[Sigarda, Font of Blessings]] or [[Swiftfoot Boots]] equipped. I have a removal spell and a way to copy it. Can I stack my spell and copy effect remove both the hexproof giver and the thing receiving the hexproof since it will not have hexproof at the time of resolution? (Original removal targeting the thing I want gone and the copy effect removing the hexproof giver) Or will the fact that it has hexproof simply stop me from being able to target it at all?

I can see reasons for it both working and not working but this is the second time it has come up for me and I would like a definitive answer for the next time it comes up.